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import { unwind } from './unwind.js'
test('happy', () => {  const obj = {    a : 1,    b : [ 2, 3 ],    c : [ 3, 4 ],  }  const expected = [    {      a : 1,      b : 2,      c : [ 3, 4 ],    },    {      a : 1,      b : 3,      c : [ 3, 4 ],    },  ]  const result = unwind('b', obj)  expect(result).toEqual(expected)})